Reveley is probably best known for an ambitious but unfulfilled proposal of 1796 to straighten the River Thames in east London. A new channel across the Rotherhithe, Isle of Dogs and Greenwichpeninsulas would reduce the length of the river, improve the flow to remove pollution, and simplify navigation. Three large horseshoe bends of the river would have been left as huge wet docks, connected to the new channel through locks.

In 1790, he was commissioned by the philosopher Jeremy Bentham to prepare architectural drawings for Bentham's scheme for a Panopticon prison. He continued to work on the project with Bentham for the rest of the 1790s.

Like the Thames scheme and the Panopticon prison, most of Reveley's designs never came to fruition. Other ambitious but unexecuted projects included a public bath complex at Bath, and an infirmary at Canterbury. His most significant projects which reached completion were All Saints' Church, Southampton (constructed 1792–5, but destroyed in 1940); and Windmill Hill, Sussex, a country house built for W. H. Pigou, and completed in 1798.